A limb of an animal with 5 digits (like an arm or a leg)
The word Pentadactyl means five fingers or toes in Greek.
Pentadactyl means having five digits.
it mean that you are healthy
Analogous means that the structures have different origins, but they do the same things. Homologous means the opposite: that they have the same origins but are adapted to do different functions.
toes mean your mom
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what does the word alveolli mean
Yes they do
yes they do
yes
Bats do have pentadactyl limbs. Its wing is the forelimb version of the pentadactyl limb. In the bat, the forelimbs have turned into wings for flying by great elongation of four digits, while the hook-like first digit remains free for hanging from trees.
The root word of pterodactyl is tera. This root word means trillion.
Yes, bats do have four limbs,pentadactyl limbs.
Having five digits to the hand or foot., Having five appendages resembling fingers or toes.
I will focus on the on the pentadactyl FORELIMB (arm). It is the limb that is common in vertebrates (e.g. humans, birds, dogs, whales, bats ALL HAVE ONE!). It supports the theory of evolution by strengthening the idea of divergent evolution and the idea of a common ancestor by showing that different environmental conditions and different selective pressures can result in vastly different characteristics being selected in common species. Each limb consists of: * humerus - upper arm * radius - forearm * ulna - forearm * carpals - wrist * metacarpals - palm * phalanges - fingers/digits Due to the fact that various organisms have a pentadactyl limb, it is difficult to give a definite answer to what it looks like because it varies from organism to organism. Think of as your own arm as an example of a pentadactyl limb to get a clearer image in your head: * from your shoulder to your elbow is the humerus * from the elbow to the wrist are the ulna and radius * your wrist is the carpal * your palm is the metacarpal * your fingers are the phalanges
Dactyl is actually a word fragment from the Old Greek 'dactylos' - two-jointed (three segment) finger, first (English) attested 1498, its origin predates written Greek by (at least) centuries
Over 55 million years ago horses first evolved. They were only the size of an average dog and they had a pentadactyl limb (finger like structures instead of one hoof as we know today.) This enabled them to walk around as the Earths surface was covered in marshland and they needed the splayed out feet in order to do this, otherwise they would sink and would be unable to run from predators.
Anatomy is a useful tool in gaining evidence for evolution. The most useful thing is to examine homologous structures, ie anatomical similarities between different species. The best example of this is the pentadactyl limb. It is found in humans, dolphins and bats. This shows that at some point in the past there must have been a common ancestor from which these 3 diverse groups of animals evolved.
A pentadactyl forelimb with an opposable thumb, in conjunction with the ability to walk erect (thus allowing the forelimb to be used for manipulation and not locomotion), is considered to be one of the biomechanical adaptations that made humans superior at modifying components of their environment, insuring reproductive success. A large adaptable brain and the ability to manipulate the environment positioned humans to become the high ranked members of most food chains.